<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <title>canvas射击烟花</title>
        <style>
            body,
            html {
				width: 100%;
				height: 100%;
                background: #000;
                margin: 0;
            }
            canvas {
                cursor: crosshair;
                display: block;
            }
        </style>
    </head>
    <body>
        <canvas id="canvas"></canvas>
        <script src="index.js"></script>
    </body>
</html>
